Extension Builders in Winchester

Name: Extension Builder
Brand: MyBuilder
SKU: extension-builder
Rating: 4.4 (5 reviews)

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Some of our top rated extension builders in Winchester

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Penco Builders Ltd
Rating: 5 out of 5
Extension Builder in Winchester
We are a family owned company with over 20 years of experience serving our valued customers in Southampton, Winchester and surrounding areas. We specialize in extensions, garage conversions, wall alternations and removal, bathrooms & kitchens renovation, carpentry and plastering. Please visit our website for more information.
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Latest review:
Extensions- 8 Apr 2018
I would highly recommend Greg (Penco Builders) for any work you're considering. His team worked like trojans ensuring very tight deadlines are adhered to at the highest standard. The only thing I regret is not finding Greg earlier to help me with my drawings and visual concepts. When I first started out I hired an architect to do this for me so the builder knew immediately what was required. The architect was a complete waste of time not listening to the brief or budget or visually demonstrating what the finished concept might look like. When I met Greg within 24-48hrs he amended my drawings to exactly what I wanted and more importantly suggested realistic ideas to make it even better!! I cannot recommend him highly enough, thoroughly nice chap with a trustworthy team. Matt Straker, Botley
Barton Carpentry & Joinery
No reviews yet
Extension Builder in Winchester
Hi. I'm Ben Barton, I run Barton Carpentry & Joinery. I am a NVQ level 3 carpenter & joiner. I am also SMSTS qualified. We undertake all 1st fix carpentry and 2nd fix carpentry. We also have the team to cater for every other building works you desire.
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Element Construction Group Ltd
Rating: 5 out of 5
Extension Builder in Winchester
We run a construction company based in the new forest that specialise in home renovations, garage conversions and extensions. We carry out a full range of quality work including bathroom and kitchen fittings, second fix carpentry, house renovations/extensions and certified electrical & solar PV works. We believe in being a customer’s only port of call when they need work undertaken to a high standard, meaning our customers don't have to organise multiple trades for one project. We handle it all.
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Latest review:
Carpentry- 20 Feb 2021
Highly recommended. Colin was very pleasant to deal with and did a professional job, we are very pleased. He also supplied, cut to size and hung a door for us in addition to the original job. His work is neat, he cleans up thoroughly and wore a mask throughout.
Ryzo Construction Limited
No reviews yet
Extension Builder in Winchester
At Ryzo Construction, we bring solid groundwork to your doorstep — literally. Based in Hampshire, we specialise in helping homeowners and small developers with all types of groundworks, from the ground up. Whether you're planning a new driveway, a garden transformation, or the foundations for an extension, we take care of everything below (and around) the surface. Our services include: Foundations & floors Drainage & soakaways Driveways, patios & footpaths Service trenches Garden landscaping & external finishes We're a friendly, reliable team who take pride in doing things properly. No cut corners, no mess left behind — just quality work delivered with care and attention. For jobs that require specialist finishes (like tarmac), we bring in trusted subcontractors to make sure every part of the job is completed to the highest standard. Whether it's a full garden makeover or a simple trench dig, we’re here to help bring your vision to life. No job too small, and always happy to offer advice.
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Build It Developments Ltd
Rating: 5 out of 5
Extension Builder in Winchester
We build homes,extend homes, alter homes, convert lofts & refurbish.
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Latest review:
Extensions- 28 Apr 2026
Gary and the team did an excellent job and whenever issues arose were quick to resolve them. Whenever I requested any help with the areas I was covering they were quick to lend a hand and offer advice. Would happily use the team again for any future projects.
ALAN ROBINSON HOME IMPROVEMENT SPECIALIST
Rating: 4.5 out of 5
Extension Builder in Winchester
I have over 40 years experience working both as a sole trader, carrying out general building works and I have held senior management positions including build director for both developers and contractors. I do simple maintenance jobs to full new builds. I have an HND in Building Technology and I have a full range of multi-trade skills together with family members qualified in electrical, gas and plumbing. Always polite, professional and prompt. WE NEVER FORGET THAT IT IS YOUR HOME.
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Latest review:
Kitchen Fitting- 7 Jun 2021
Didn't turn up …. Nothing against Alan at all … he was very friendly, discussed the works and came across like a good honest chap But … he came to view the works but would not commit to a price. I appreciate there are some unknowns but given he had visited the house for 45 minutes to see what was needed I would assume he would be able to quote a price. He talked about if's, buts and maybe's which I was happy to allow for but this did feel like he was pricing for the 'worst case scenario'. I sent a further note around the tasks and anticipated timings, which he was happy with but it was frustrating that I only found out he was not coming on the day he was due. He was a good guy but disappointed he didn't turn up to complete the work, which was pretty simple around repairing cupboards, replacing shower tray (and cubicle if needed), repairing skirting & floor board).. After he didn't arrive, I asked him if he wanted to complete the work but he has not yet replied....
Hawksvale Developments
Rating: 4.4 out of 5
Extension Builder in Winchester
we offer a friendly, reliable and trustworthy service. we have been trading in the Hampshire area as a company for the past 6 years doing all aspects of building work from 1st and 2nd fix carpentry, brick walls, patios, garden refurbishments, extension and new builds.
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Latest review:
Bricklaying- 28 Mar 2019
I had footings dug and two block walls built. The guys arrived at 0730 as agreed. The job has been finished to a terrific standard on time and at a great price. I would recommend to anyone.
AC Carpentry And Construction
Rating: 3.9 out of 5
Extension Builder in Winchester
At AC Carpentry & Construction, we cover all aspects of Carpentry inc floors,doors, bespoke wardrobes, stairs. Specialists in Loft, Garage & Retail conversions, small extensions and refurb projects. Professional experienced team for all your Carpentry and Construction needs.
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Latest review:
Carpentry- 11 Apr 2017
Alex carried out the works we requested very professionally and the communication before, during, and after the job was all excellent. We are incredibly happy with the service provided and will definitely be contacting AC Carpentry and Construction for any work we need doing in the future.
Bricks & Mortar Wessex Limited
No reviews yet
Extension Builder in Winchester
I own my own company called Bricks & Mortar Wessex LTD. I built this business up from a very young age and have over 40+ years experience. My company varies from New builds, Renovations, Extensions and more. We take huge pride in my work and the service we supply creating immaculate work. Please do not hesitate to contact me regarding any work you need doing and I will be happy to assist. You can also find us on Federation of Master Builders.
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Diamond Construction
Rating: 4.9 out of 5
Extension Builder in Winchester
Hi and welcome to Diamond construction we have 50 years experience in the company and treat each job as if it was our own, no matter how big or small, we pride ourselves on giving great customer service, our work varies from small to very large refurbishment and roofing jobs so why not give us a try.
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Latest review:
Bathroom Fitting- 7 Aug 2023
We asked Richard to remove our old bathroom suite and replace it with an ensuite shower (not a wet room). Richard listened to what we were looking for in our ‘dream’ shower room and gave suggestions on layout, design and tile styles and colour ways. He has a good eye for Co-ordination and made some great suggestions for wall tile and flooring ideas. Shower installed was of a high specification and is fabulous! Extractor fan and ceiling lights also installed. Richard is a hard working craftsman who does the job to a good standard. As with any construction work there was some disruption but Richard took our two cats into account when going in and out of our property. Yes it did get dusty but what can you expect when building works happen?! Richard finished the job and left our ‘site’ in a very clean state with all building materials removed. We’ve asked Richard to come back and renovate our downstairs cloakroom next. Highly recommend!
Hammer Home Improvements
Rating: 4.9 out of 5
Extension Builder in Winchester
Hello and thank you for viewing my profile. We are Hammer home improvements based in Basingstoke with over 15 years of carpentry, roofing, general building and maintenance experience. We take on all jobs in and around your home such as loft and garage conversions, all types of roof extensions including pitch and flat roofs, house renovations and roof maintenance, landscaping and decking. All jobs big and small. Free no hassle quotes. Fully insured.
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Latest review:
Carpentry- 10 May 2019
Chris went out of his way to make sure everything was as I would like. Both I and my husband were delighted with his work. Everything was left tidily at the end of each visit. We would happily use him again. Thank you
KCK builders
Rating: 5 out of 5
Extension Builder in Winchester
We are a small, friendly company based in Basingstoke, Hampshire.We provide a vast range of services, everything from bathroom and kitchen refurbishments up to plumbing, electrical work and interior .
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Latest review:
Extensions- 25 Oct 2019
Krystian and his team did an excellent job for us on the new extension new bathroom and new Kitchen . They arrived on the day we agreed and got on with the work right away and the price we paid was the price quoted before the work begun .They were very professional hard working and payed excellent attention to detail.The finish was excellent and he and his team left the house clean and tidy after they were done.we are already recommending Krystian to friends and family that need work doing on their house Thank you Krystian for everything, we will definitely be back for other jobs.
Ep.builders@yahoo.com
No reviews yet
Extension Builder in Winchester
I’ve been in the building trade for over 20 years I’ve run big jobs on big Isites but just want to focus on smaller jobs and more time with my family I pride my self on quality work but at a fair price too many people over charging and not even producing work to a very high standard
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A & P Building Services
Rating: 5 out of 5
Extension Builder in Winchester
I undertake kitchens, extensions, conversions and all property maintenance. The company was established 16 years ago. I pride myself on complete customer satisfaction. I have built up trusted and reliable contacts within all trades when required.
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Latest review:
Conversions - General- 20 Nov 2014
Paul has been professional from start to finish, always punctual and ready for work. He has taken our original brief and worked with us suggesting, advising and answering our questions all the way. He has managed sub contractors and the budget to deliver us the high quality kitchen diner, utility and toilet that we wanted. We are very please and would recommend Paul for similar projects. Many Thanks Paul
Skyline Southern Limited
Rating: 5 out of 5
Extension Builder in Winchester
We have been in the construction industry over 40 years and have completed projects all over the south of England.
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Latest review:
Extensions- 11 Feb 2022
We had to wait a few months before Rick and Lee could start, as their previous job overran. However, we're so glad we did! From start to finish they were an absolute joy to work with. Nothing was too much trouble for them and they always advised us the best way to go about things. They are a definite credit to the trade. The job is now complete and we're just waiting for the sign off from the Council. We can't recommend Skyline Southern enough. If you find Rick is booked up, that's because he's in high demand, for obvious reasons. My advice is be patient and wait, it will definitely be worth it in the end. Thank you Rick and Lee for a fantastic job!
Target Groundworks ltd
Rating: 5 out of 5
Extension Builder in Winchester
We are an established groundworks contractor with 15 years’ experience in the industry. We provide a very bespoke and tailored service to all our clients, ensuring every project is made to a luxury high specification and standard. We cover all aspects of groundwork installations, including both the domestic and commercial sectors. We are fully health and safety qualified.
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Latest review:
Groundwork & Foundations- 10 Jan 2026
Excellent hard working company .. Sam who owns the company ( I think ) has high morals and integrity and honest. Mat who did most of the work… has a great eye and nothing is too much of a problem … Really enjoyed creating a wonderful drive and garden with them - Approx 1 acre plot …on a farm house with barns .. Have one more smaller project to complete and won’t hesitate to use them again . Shout out to for Toby … one of Mats assistance .. Never saw him rest !

4.4

Top rated Extension Builders

Our Extension Builders in Winchester, are rated 4.4 out of 5 based on 5 reviews from customers like you.

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What types of services are offered by local extension builders in Winchester?

Building an extension is a major milestone for any home. It’s not just about adding extra space, it’s a big step that can transform how you live day to day, opening up new possibilities for comfort, lifestyle, and family needs.

This is why it’s so important to find the right extension builders in Winchester for you. They can help with a variety of tasks and projects, including:

Extending your home with an extra room
Two+ storey extensions
Adding partition walls to create more rooms
Building annexes or external structures

To find the right extension builder near you, simply post your job on MyBuilder. Explain the type of help you’re looking for, and then home extension builders in Winchester who are available and interested can respond to your post.

Browse profiles, read customer reviews and get quotes from your chosen Winchester extension builders, all before you decide who to hire.

What are the hourly rates of extension builders in Winchester?

Before getting started with your extension project, it’s important to have a clear budget in place. On average, extension builders in Winchester will charge between £16 and £42 per hour.

Single-storey rear extensions cost between £20,000 and £60,000 depending on size and finish.
The cost of double-storey extensions, which add more space and value, can range from £100,000 to over £170,000.
Larger wrap-around extensions that combine multiple extension types can range from £40,000 to over £120,000.

The cost of an extension will vary depending on your property. For instance, extending in certain areas may require structural adjustments to ensure stability, which can increase your material and labour costs.

To get an accurate price for your home extension, request detailed quotes from several Winchester extension builders near you on MyBuilder. This allows you to compare what each quote covers and how much your Winchester home extension project is likely to cost.

Find extension builders in Winchester with MyBuilder

Hiring the right extension builder in Winchester with MyBuilder couldn’t be easier. Just follow these simple steps:

Step 1: Post your extension project on MyBuilder

Whether you’re planning a single-storey extension, a loft conversion, or adding a new room, post your job on MyBuilder to find local Winchester extension builders. Once your job is live, we’ll share it with home extension builders in Winchester who can express their interest.

Step 2: Compare different extension builders in Winchester

When you start receiving interest, review profiles of local Winchester extension builders, check their previous work, and read real customer reviews. Ask about timelines, materials, and request detailed quotes.

Step 3: Hire Winchester extension builders with confidence

After gathering all the information and quotes from your chosen home extension builders in Winchester, compare their experience, guarantees, and costs before choosing who to hire.

You’ll also have confidence knowing that every tradesperson on MyBuilder is verified through several checks, including:

ID verification: When a tradesperson joins MyBuilder, we ask for a valid ID, such as a passport, ID card, or eIDAS certificate.
Company verification: For tradespeople operating under a company, we make sure every tradesperson has a registered business.

Did you know? Our continuous monitoring and complaints process ensures that tradespeople who don’t meet our standards are promptly removed from MyBuilder’s platform.

Winchester extension builders are ready to help. Use MyBuilder today to find the right professional for your home extension.

What to ask a Winchester extension builder before hiring?

Before hiring an extension builder in Winchester or extension building company in Winchester, ask a few key questions to make sure you’re choosing the right professional for your home extension project.

What qualifications and experience do you have as an extension builder in Winchester?

An extension builder in Winchester should have a strong track record with similar projects and relevant building qualifications or trade memberships, such as the Federation of Master Builders (FMB) or TrustMark.

Will my home extension meet all building regulations and planning requirements?

Your Winchester extension builder should ensure the project complies with Building Regulations and, where necessary, handle or assist with planning permissions. Ask how they manage building control inspections and what documentation you’ll receive once the project is complete.

What experience do you have with similar extensions in Winchester?

Ask to see examples of their previous work, or view examples of their work on MyBuilder. Ideally projects similar to yours in scale and design. This helps you assess the Winchester extension builder’s ability to deliver a result that meets your expectations.

How long will the extension take to complete?

Extension project timelines can vary depending on size, complexity, and weather. A typical single-storey extension might take around 8 - 12 weeks. Request a detailed schedule so you know what to expect and when key milestones will be reached.

Do you offer a guarantee for your work? Most Winchester extension builders offer a guarantee or warranty on their work, often between 1 and 10 years depending on the project and materials used. This gives you assurance that any issues will be resolved after completion.

If you still have questions about the professional you are looking to hire, we have a full detailed guide on hiring the right builder here.

FAQ: Common questions about home extensions in Winchester

Can an extension builder in Winchester help with planning permission?

Yes, many extension builders in Winchester can guide you through the planning process. They can help prepare drawings, advise on local requirements, and liaise with your local council to ensure your project meets all necessary regulations.

Can an extension builder in Winchester handle everything from design to construction?

Many Winchester extension builders offer full design-and-build services, managing both the architectural planning and construction stages. Ask your builder whether they can provide a complete package or if you’ll need to hire an architect or designer separately.

Will an extension builder in Winchester help with materials and finishes?

Yes, most extension builders in Winchester can source materials and offer advice on finishes that suit your design and budget. You can also choose to supply certain materials yourself, just make sure this is agreed upon before work starts.